US6460896B1 - Sewer pipe coupling - Google Patents

Sewer pipe coupling Download PDF

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Publication number
US6460896B1
US6460896B1 US09/714,276 US71427600A US6460896B1 US 6460896 B1 US6460896 B1 US 6460896B1 US 71427600 A US71427600 A US 71427600A US 6460896 B1 US6460896 B1 US 6460896B1
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US
United States
Prior art keywords
external
diameter
pipe
coupling
internal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US09/714,276
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English (en)
Inventor
Greg Stephens
Peter Vieveen
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Individual
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Individual
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Priority to US09/714,276 priority Critical patent/US6460896B1/en
Priority to CA002360875A priority patent/CA2360875C/fr
Priority to AU2002221374A priority patent/AU2002221374A1/en
Priority to PCT/CA2001/001644 priority patent/WO2002040910A1/fr
Application granted granted Critical
Publication of US6460896B1 publication Critical patent/US6460896B1/en
Adjusted expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
    • F16L41/088—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe fixed using an elastic grommet between the extremity of the tube and the wall
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers

Definitions

  • This invention relates to a sewer pipe coupling.
  • the invention relates to a sewer pipe coupling for transverse connection of a small diameter drainpipe to a structure of larger relative diameter such as a sewer pipe or maintenance chamber for accessing a mainline pipe or storm sewer catch basins.
  • a pipe coupling is often required when joining a pipe in transverse connection with a second pipe.
  • a seal may be desirable to prevent sewage from escaping and contaminating the surrounding area and also to prevent ground water from entering the sewer pipe.
  • a drainpipe in transverse connection with a concrete pipe, is attached using a pipe coupling with an exterior flange for positioning.
  • the flange extends outwardly from the coupling and abuts the exterior surface of the concrete pipe and prevents the coupling from being inserted farther into the concrete pipe.
  • a sealing ring, or an O-ring, on an interior surface of the pipe coupling is used for creating a seal between the coupling and an internally inserted drainpipe.
  • the coupling is held in place in the bore-hole in the concrete pipe and sealed using cement mortar around the flange, spreading the mortar outwardly to the exterior surface of the concrete pipe. It is difficult to create a seal using mortar as it does not adhere well to the surface of the PVC pipe. Also, the mortar can shrink and crack when it dries out, thus creating a leak.
  • U.S. Pat. No. 6,015,169 to Funke et. al. discloses a coupling device that has an internal ring seal to create a seal with an internally located pipe and an external ring seal that abuts the concrete sewer pipe at a branch opening to create a seal.
  • a polyurethane resin is injected between the coupling and the concrete pipe to seal and fix the coupling to the concrete pipe.
  • the external stop device includes a separate positioning collar that must be inserted before the coupling is placed in the bore-hole of the pipe. Also, the device requires the injection of a polyurethane resin between the coupling and the concrete pipe.
  • the connector for transverse connection of a small diameter pipe to a sewer pipe of larger relative diameter.
  • the connector has a hollow, longitudinally extending cylindrical body with first and second ends and interior and exterior surfaces.
  • the body has an external locating shoulder, on the exterior surface, integral with the body and extending outwardly therefrom.
  • the external locating shoulder limits penetration of the connector in an opening in a sidewall of the large diameter pipe.
  • the body also has an internal groove on the interior surface, located at a same longitudinal spacing as the external locating shoulder. The internal groove receives an internal sealing ring for creating a seal between the small diameter pipe and the body when the small diameter is inserted therein.
  • the body further has an external recess on the exterior surface, longitudinally spaced from the external locating shoulder, the external recess for receiving an external sealing ring for creating a seal between the body and the large diameter pipe when the connector is inserted into the opening.
  • FIG. 1 is a perspective view showing a pipe coupling according to the invention in use with a drain pipe and concrete pipe;
  • FIG. 2 is a perspective view of the pipe coupling of FIG. 1 drawn to a larger scale
  • FIG. 3 is a cross-sectional drawn on line 3 — 3 of FIG. 1 and drawn to a larger scale.
  • Pipe coupling 10 is for transverse connection of a small diameter pipe such as drainpipe 12 to a large diameter structure such as concrete sewer pipe 14 .
  • Coupling 10 has a hollow, longitudinally extending cylindrical body 16 with a first spigot end 18 and a second bell end 20 and interior and exterior surfaces 22 , 24 respectively.
  • Coupling 10 also has an external locating shoulder 26 (FIGS. 2, 3 ) on exterior surface 24 .
  • External locating shoulder 26 is integral with the body 16 and extends outwardly therefrom for limiting the penetration of coupling 10 in an opening 28 in a sidewall 30 of concrete pipe 14 .
  • An internal groove 32 on interior surface 22 is at a same longitudinal spacing as external locating shoulder 26 .
  • Internal groove 32 receives an internal sealing ring 34 to create a seal between drainpipe 12 and body 16 when drainpipe 12 is inserted therein.
  • a reduced diameter portion at the spigot end 18 defines external recess 36 on exterior surface 24 .
  • External recess 36 receives and locates an external sealing ring 38 for creating a liquid seal between the body 16 and concrete pipe 14 , when the body 16 is inserted therein.
  • Cylindrical body 16 of coupling 10 is centered about a central axis 40 .
  • Cylindrical body 16 is about five and a half inches in length and is made of rotation moulded polyethylene (P.E.).
  • the internal diameter of body 16 varies from the spigot end 18 to the bell end 20 , to facilitate the positioning and sealing of drainpipe 12 in coupling 10 .
  • the external diameter of body 16 varies from the spigot end 18 to the bell end 20 to facilitate the position and sealing of coupling 10 in opening 28 of concrete pipe 14 .
  • Body 16 has four generally cylindrical, integral body portions.
  • First body portion 42 is generally cylindrical with an axial length and external diameter small enough to receive external sealing ring 38 and fit in opening 28 of concrete sewer pipe 14 without protruding into the pipe 14 where it could otherwise obstruct flow.
  • External sealing ring 38 for creating a seal between concrete sewer pipe 14 and coupling 10 is seated on exterior surface 24 of coupling 10 , at first body portion 42 with circumferential sealing lips 43 extending outwardly to make contact with the surrounding concrete pipe wall 28 .
  • the internal diameter of first body portion 42 is smaller than the external diameter of drainpipe 12 to prevent drainpipe 12 from passing therethrough.
  • the spigot end 18 is defined by the edge of the first body portion 42 .
  • Second body portion 44 Adjacent the first body portion 42 and integral therewith is a generally cylindrical second body portion 44 .
  • Second body portion 44 has an external diameter that is larger relative to that of the first body portion 42 and has a tolerance fit small enough for insertion into the opening 28 in the concrete pipe 14 without allowing rocking of the coupling 10 in the opening 28 .
  • An external gasket stop edge 46 is created by the transition to relatively larger external diameter from the first body portion 42 to the second body portion 44 .
  • External gasket stop edge 46 prevents external sealing ring 38 from sliding past the first body portion 42 , in the direction of the second body portion 44 .
  • First body portion 42 and external gasket stop edge 46 define external recess 36 .
  • the interior diameter at second body portion 44 is also larger, relative to that of the first body portion 42 , thus creating a drain pipe stop edge 48 between the first body portion 42 and the second body portion 44 .
  • the internal diameter at second body portion 44 is suitably sized to receive the drainpipe 12 when inserted into the coupling 10 . Drainpipe 12 is prevented from being inserted past second body portion 44 as drainpipe 12 abuts drainpipe stop edge 48 .
  • internal shoulder 62 is defined by first body portion 42 and drain pipe stop edge 48 .
  • Third body portion 50 Adjacent the second body portion 44 and integral therewith is a generally cylindrical third body portion 50 .
  • Third body portion 50 has an external diameter that is larger relative to that of the second body portion 44 .
  • An external stop edge 52 is created by the transition from smaller to larger external diameter between the second body portion 44 and the third body portion 50 .
  • External locating shoulder 26 is defined by the external stop edge 52 and the third body portion 50 .
  • the external diameter of third body portion 50 is larger than the diameter of opening 28 in the concrete sewer pipe 14 thus preventing third body portion 50 from being inserted into concrete pipe 14 .
  • the internal diameter at third body portion 50 is also larger than that at second body portion 44 thus creating an internal gasket stop edge 54 between the second body portion 44 and the third body portion 50 .
  • the internal diameter is suitably sized to receive an internal sealing ring 34 for creating a seal between the coupling 10 and the drainpipe 12 , when drainpipe 12 is inserted into the coupling
  • Adjacent the third body portion 50 and integral therewith is a generally cylindrical fourth body portion 56 .
  • the external diameter of the fourth body portion 56 is substantially similar to that of the second body portion 44 .
  • an external shoulder edge 58 is created by the transition to relatively smaller diameter from the third body portion 50 to the fourth body portion 56 .
  • the internal diameter of the fourth body portion 56 is also substantially similar to that of the second body portion 44 .
  • An internal groove edge 60 is created by the transition to a relatively smaller internal diameter from third body portion 50 to fourth body portion 56 .
  • the internal groove 32 is defined by internal gasket stop edge 54 , third body portion 50 and internal groove edge 60 and internal sealing ring 34 is located in internal groove 32 .
  • the bell end 20 is defined by the edge of fourth body portion 56 .
  • external recess 36 is located at a same longitudinal position along axis 40 as internal shoulder 62 . Also, external locating shoulder 26 is at a same longitudinal position along axis 40 as internal groove 32 .
  • Coupling 10 can be used in transverse connection of any suitable drainpipe 12 to a suitable larger concrete sewer pipe 14 .
  • the external sealing ring 38 Prior to inserting the coupling 10 into the opening 28 in the concrete pipe 14 , the external sealing ring 38 is placed around cylindrical body 16 in external recess 36 . Similarly, the internal sealing ring 34 is placed in internal groove 32 .
  • Opening 28 in concrete pipe 14 is suitably sized to receive first and second body portions 42 , 44 respectively, of coupling 10 and small enough to prevent third body portion 50 from passing therethrough.
  • the concrete pipe 14 has an inner wall surface 64 between an interior sidewall surface 66 and an exterior sidewall surface 68 .
  • the first spigot end 18 of coupling 10 is inserted into opening 28 and coupling 10 is urged into place such that external stop edge 52 of external locating shoulder 26 abuts exterior sidewall surface 68 .
  • External gasket stop edge 46 prevents external sealing ring 38 from sliding away from the spigot end 18 along the body 16 , when inserting the first and second body portions 42 , 44 into the concrete pipe 14 .
  • External sealing ring 38 is thus compressed between the inner wall surface 64 and the first body portion 42 , thereby creating a seal between the body 16 and the concrete pipe 14 .
  • the body 16 extends transversely to concrete pipe 14 and third and fourth body portions 50 , 56 , respectively, extend outwardly from the opening 28 .
  • Drainpipe 12 with an inner end 70 and an outer surface 72 is then inserted into the second bell end 20 of the coupling 10 .
  • the drainpipe 12 is urged into place such that the inner end 70 abuts the drainpipe stop edge 48 of internal shoulder 62 .
  • Internal sealing ring 34 is thus compressed between outer surface 72 of the drainpipe 12 and the interior surface 22 at third body portion 50 , thereby creating a seal between body 16 and drainpipe 12 .
  • Drainpipe 12 is therefore in sealed connection with concrete pipe 14 , through coupling 10 and a forward portion of the drainpipe 12 disposed inside the second body portion 44 forms a double wall inside the opening 28 of the concrete pipe 14 .
  • the embodiment discussed herein is directed to a particular implementation of the invention, variations of this embodiment are within the scope of the invention.
  • the size and shape of any of the features can differ while still performing the same function.
  • the external or internal sealing rings can be fixed to the body of the coupling.
  • the coupling can be made of any suitable material, using any suitable forming process.
  • the invention provides a novel coupling for transverse connection of a drainpipe to a concrete sewer pipe with a larger diameter relative to the drainpipe.
  • the coupling can be relatively easily installed and can provide a sealed connection between the drainpipe and concrete sewer pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)
  • Joints With Sleeves (AREA)
US09/714,276 2000-11-17 2000-11-17 Sewer pipe coupling Expired - Fee Related US6460896B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US09/714,276 US6460896B1 (en) 2000-11-17 2000-11-17 Sewer pipe coupling
CA002360875A CA2360875C (fr) 2000-11-17 2001-11-01 Raccord de conduite d'egout
AU2002221374A AU2002221374A1 (en) 2000-11-17 2001-11-15 Sewer pipe coupling
PCT/CA2001/001644 WO2002040910A1 (fr) 2000-11-17 2001-11-15 Manchon de raccord de conduites d'egout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/714,276 US6460896B1 (en) 2000-11-17 2000-11-17 Sewer pipe coupling

Publications (1)

Publication Number Publication Date
US6460896B1 true US6460896B1 (en) 2002-10-08

Family

ID=24869388

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/714,276 Expired - Fee Related US6460896B1 (en) 2000-11-17 2000-11-17 Sewer pipe coupling

Country Status (4)

Country Link
US (1) US6460896B1 (fr)
AU (1) AU2002221374A1 (fr)
CA (1) CA2360875C (fr)
WO (1) WO2002040910A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060175338A1 (en) * 2004-12-16 2006-08-10 Pishock Charles T Jr Tank outlet fitting with flange
US20060214423A1 (en) * 2005-03-24 2006-09-28 Langdon Incorporated Sealing gasket for ventilation duct system
USD534253S1 (en) 2005-03-24 2006-12-26 Langdon Incorporated Gasket
US20070200341A1 (en) * 2006-02-13 2007-08-30 Plastiques Gyf Ltee Sewer tap with watertight lip
US20140049040A1 (en) * 2012-08-14 2014-02-20 Ductmate Industries, Inc. Flexible Register Boot for Heated and Cooled Air
US20150192206A1 (en) * 2014-01-03 2015-07-09 Freudenberg-Nok General Partnership Low Load Dual Flap Seal Assembly
US9528643B2 (en) 2014-12-02 2016-12-27 Cnh Industrial Canada, Ltd. Air grommet connector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2306548B1 (es) * 2005-07-28 2009-09-16 Uralita Sistemas De Tuberias, S.A. Pieza de union entre un pozo de registro y una canalizacion y procedimiento de colocacion de la misma.

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2271777A (en) * 1939-04-25 1942-02-03 Goodrich Co B F Sealing structure
US2722438A (en) * 1949-03-31 1955-11-01 Lock Joint Pipe Co Flexible packing for pipe in socket joint
US3054627A (en) * 1959-10-26 1962-09-18 W S Dickey Clay Mfg Company Coupling for ceramic pipe
US3973783A (en) 1971-11-11 1976-08-10 Harry W. Skinner Pipe joint sealing device
US4186931A (en) * 1977-12-02 1980-02-05 Anderson Kenneth W Pipe end sealing system
US4240651A (en) 1977-07-20 1980-12-23 Automatisation-Sogemo Coupling systems for conduits, particularly for semi-rigid plastic tubes
US4547005A (en) * 1981-08-12 1985-10-15 Eduard Soederhuyzen Connecting pipe part of a resilient material
US4685705A (en) * 1986-06-27 1987-08-11 United States Pipe And Foundry Company Large deflection pipe coupling
US5002317A (en) 1989-04-10 1991-03-26 Burkit John W Internal expansion coupling device
US5096232A (en) 1988-08-09 1992-03-17 Degremont Apparatus for the rapid and the air and water tight joining of pipes
US5169161A (en) * 1991-09-19 1992-12-08 Hail Mary Rubber Co., Inc. Symmetrical gasket for pipe joints
US5975585A (en) 1996-11-29 1999-11-02 Forsheda Ab Pipe coupling device
US6015169A (en) 1996-03-25 2000-01-18 Kunst-Stoffrohren Sedenhorst Gmbh Connector for concrete pipes
US6394504B1 (en) * 2000-04-04 2002-05-28 General Motors Corporation Clampless fluid transfer hose coupling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01111934A (ja) * 1987-10-21 1989-04-28 Noboru Toyoda コンクリート製品と管の接合部の構造
JPH06100303B2 (ja) * 1989-06-20 1994-12-12 株式会社扶桑技術研究所 下水道本管への排水管の接続工法及びその接続装置
DE19611682C1 (de) * 1996-03-25 1997-05-07 Sendenhorst Kunststoffroehren Stutzen für Betonrohre
DE19644357C2 (de) * 1996-10-25 2000-11-16 Sendenhorst Kunststoffroehren Schlauchdichtung
SE511548C2 (sv) * 1998-02-19 1999-10-18 Forsheda Ab Sätt att till ett företrädesvis av betong bestående rör ansluta en rörledning

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2271777A (en) * 1939-04-25 1942-02-03 Goodrich Co B F Sealing structure
US2722438A (en) * 1949-03-31 1955-11-01 Lock Joint Pipe Co Flexible packing for pipe in socket joint
US3054627A (en) * 1959-10-26 1962-09-18 W S Dickey Clay Mfg Company Coupling for ceramic pipe
US3973783A (en) 1971-11-11 1976-08-10 Harry W. Skinner Pipe joint sealing device
US4240651A (en) 1977-07-20 1980-12-23 Automatisation-Sogemo Coupling systems for conduits, particularly for semi-rigid plastic tubes
US4186931A (en) * 1977-12-02 1980-02-05 Anderson Kenneth W Pipe end sealing system
US4547005A (en) * 1981-08-12 1985-10-15 Eduard Soederhuyzen Connecting pipe part of a resilient material
US4685705A (en) * 1986-06-27 1987-08-11 United States Pipe And Foundry Company Large deflection pipe coupling
US5096232A (en) 1988-08-09 1992-03-17 Degremont Apparatus for the rapid and the air and water tight joining of pipes
US5002317A (en) 1989-04-10 1991-03-26 Burkit John W Internal expansion coupling device
US5169161A (en) * 1991-09-19 1992-12-08 Hail Mary Rubber Co., Inc. Symmetrical gasket for pipe joints
US6015169A (en) 1996-03-25 2000-01-18 Kunst-Stoffrohren Sedenhorst Gmbh Connector for concrete pipes
US5975585A (en) 1996-11-29 1999-11-02 Forsheda Ab Pipe coupling device
US6394504B1 (en) * 2000-04-04 2002-05-28 General Motors Corporation Clampless fluid transfer hose coupling

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060175338A1 (en) * 2004-12-16 2006-08-10 Pishock Charles T Jr Tank outlet fitting with flange
US20060214423A1 (en) * 2005-03-24 2006-09-28 Langdon Incorporated Sealing gasket for ventilation duct system
USD534253S1 (en) 2005-03-24 2006-12-26 Langdon Incorporated Gasket
US7523964B2 (en) * 2005-03-24 2009-04-28 Langdon Incorporated Sealing gasket for ventilation duct system
US20070200341A1 (en) * 2006-02-13 2007-08-30 Plastiques Gyf Ltee Sewer tap with watertight lip
US20140049040A1 (en) * 2012-08-14 2014-02-20 Ductmate Industries, Inc. Flexible Register Boot for Heated and Cooled Air
US10591179B2 (en) * 2012-08-14 2020-03-17 Ductmate Industries, Inc. Flexible register boot for heated and cooled air
US20150192206A1 (en) * 2014-01-03 2015-07-09 Freudenberg-Nok General Partnership Low Load Dual Flap Seal Assembly
US9945482B2 (en) * 2014-01-03 2018-04-17 Freudenberg-Nok General Partnership Low load dual flap seal assembly
US10767762B2 (en) 2014-01-03 2020-09-08 Freudenberg-Nok General Partnership Low load dual flap seal assembly
US9528643B2 (en) 2014-12-02 2016-12-27 Cnh Industrial Canada, Ltd. Air grommet connector

Also Published As

Publication number Publication date
AU2002221374A1 (en) 2002-05-27
WO2002040910A1 (fr) 2002-05-23
CA2360875C (fr) 2005-08-16
CA2360875A1 (fr) 2002-05-17

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